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本文基于2003~2012年我国除西藏外30个省区服务业面板数据,运用超越对数的随机前沿技术对我国服务业技术效率及其影响因素进行了实证分析。实证结论表明服务贸易自由化提高有利于服务业技术效率的提升,认为现阶段服务贸易领域并未出现“生产率悖论”现象。但是,服务贸易自由化与服务业技术效率理论上存在着倒“U”形关系,当服务贸易自由度过高超过“拐点”时就会出现“生产率悖论”现象。在实证分析中,我们也发现政府规制对服务业技术效率有一定的抑制作用,而人力资本、贸易自由化的外商国内参与程度对服务业技术效率有一定的促进作用。据此,我们提出应针对服务行业不同特点实行差异化贸易策略等对策建议。
Based on the panel data of service industry in 30 provinces and autonomous regions outside Tibet from 2003 to 2012, this paper empirically analyzes the technical efficiency of service industry in our country and its influencing factors by using stochastic frontier technology that exceeds the logarithm. The empirical results show that the increase of liberalization of trade in services is beneficial to the improvement of technical efficiency in the service industry, and the phenomenon of “productivity paradox” does not appear in the field of service trade at this stage. However, there is theoretically a “U” -shaped relationship between the liberalization of service trade and the technical efficiency of service industries. When the freedom of service trade exceeds the inflection point, “paradox of productivity” will emerge. In the empirical analysis, we also find that government regulation has a certain restraining effect on the technical efficiency of service industries. However, the degree of foreign domestic participation of human capital and trade liberalization has a certain promotion effect on the technical efficiency of service industries. Accordingly, we propose some countermeasures and suggestions such as differentiated trade strategies based on different characteristics of service industries.